Making a PCB? What did you forget? Use this checklist before you order and save yourself some pain and money.

Web app to control ION bluetooth lamps

An open-source, high-resolution scrolling Knob, powered by QMK.

Script to get blink(1) notifications when something happens in your GitHub PRs

This is a subtractive synth homage to the legendary Minimoog using the Teensy 4.1 microcontroller. This is primarily for entertainment and educational purposes, and to see what all is possible with…

Blink1 tool on alpine

Lightweight JSON library written in C.

Pico/Pico2-based board for playing with synthesizers in CircuitPython

The 2025 Hackaday Supercon RF Communicator Badge

Vibe coding a PCB

Badge for Sketching in Hardware 2025

Utility to execute code locally and remotely on CircuitPython devices

breakbeats that I tweaked

Interactive Shell Tool to Simplify Arduino Development with arduino-cl

Reverse-engineering the MIDIVerb audio effects processor

Pure Data as a plugin, with a new GUI

A high-performance, zero-heap, multi-instance audio library for RP2040.

📷 Control USB Cameras from an app

Provides a set of applications for STM32C0xx series based on the STM32 Classic Core Middleware libraries.

CH570 is the world’s cheapest RISC-V 2.4GHz wireless & USB2 SoC, costing just about a dime (10 cents)!

Sculpted and curved keycaps for Kailh Choc and MX switches

Generates a 2D touchpad / trackpad XY pattern and creates a fully routed PCB out of it

A CircuitPython port of examples in The Nature of Code

Code and examples for the Music Thing Modular Workshop Computer

A small digital multimeter specifically for measuring SAO related stuff